Army Council Instruction 289 of October 1914 authorised a Motor Machine Gun Battery for each Division of the Expeditionary Force then in France and preparing to go to France.
Terminology of machine gun units was officially set out in 1917.
Machine-Gun Corps.- The following definitions are laid down for the Cavalry, Infantry and Motor Branches of Machine Gun Corps:-
Section = 4 machine guns with personnel.
Sub-Section = 2 machine guns with personnel.
Detachment = 1 machine gun with personnel.
Training Manuals and War Establishments will be amended accordingly.Army Order 164 of 1917.
- The National Archives, WO 123/59, Army Orders 1917.
- The National Archives, WO 293/1, Army Council Instructions 1914.
- Gudmundson, 2005